Delete Child Table Rows Based On Predicates In A Parent Table

I have two tables that are related by keys. For instance,

Table employee {
last_name char(40) not null,
first_name char(40) not null,
department_name char(40) not null,
age int not null,
...
}
Employee table has a primary key (combination of last_name and first_name).

Table address {
last_name char(40) not null,
first_name char(40) not null,
street char(200) not null,
city char(100) not null,
...
}
Address table has a primary key (combination of last_name, first_name and
street in which (last_name, first_name) reference (last_name, first_name) in
employee table.

Now I want to delete some rows in Address table based on department_name in
Employee table. What is sql for this delete?

I appreciate your help. Please ignore table design and I just use it for my
problem illustration.


Jim